Edge-gage for sewing-machines.



L. E. JOHNSON & E. ERICKSON.

EDGE GAGE FOR SEWING MACHINES.

APPLICATION FILED APR.24.19I5- Patented Mar. 28, 1916.

2 SHEETS-SHEET I;

. M @ntmwz Lawrence E. J0

Edward Efllchfiom,

y Jflhw.

THE COLUMBIA PLANOGRAPH C0-- WASHINGTON. D. C.

L. E. JOHNSON & E; ERICKSON. EDGE GAGE'FOR-SEWING MACHINES.

APPLICATION FILED APR- 24, 1915- l, 177,24=8. V Patented Mar 28, 1916.

- I 2 SHEETSSHEET 2- I 17 a j fwo 3| 3 1 1.1 11

Tm: COLUMBIA PLM JOGRAPH cm, WASHINGTON, D. c.

* once.

LAWRENCE E. JOHNSON, OF W'INTHROP, AND EDWARD ERICKSON', OF LYNN, MASSA- CHUSETTS, ASSIGNORS TO VICTOR SHOE MACHINERY COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

EDGE-GAGE FOR SEWING-MACHINES.

To all whom it may concern Be it known that we, LAWRENCE E. JOHN- soN, a citizen of the United States of America, and a resident of l/Vinthrop, in the county of Sufiolk and State of Massachusetts, and EDWARD ERICKSON, a subject of the King of Sweden, and a resident of Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Edge-Gages for Sewing-Machines, of which the following is a specification.

This invention relates to edge gages for sewing machines and has for its object the provision of means whereby the gage may be adjusted very accurately while the machine is in operation and frictionally retained in adjusted position until again changed by the operator.

The invention consists in certain novel features of construction and arrangement of parts which will be fully understood by reference to the description of the drawings and to the claims hereinafter given. 7

Of the drawings: Figure 1 represents a side elevation of a sewing machine to which has been applied an edge gage embodying the principles of the present invention. Fig. 2 represents a front elevation of a portion of the same. Fig. 3 represents a horizontal section of the same, the cutting plane being on line 33 on Fig. 1, and Fig. 4 represents a horizontal section of the same, the cutting plane being on line 44 on Fig. 1.

Similar characters designate like parts throughout the several figures of the drawings.

In the drawings, 10 is the frame of a sewing machine such as is shown and described in Letters Patent No. 1,133,147 issued to us March 23, 1915, and to which reference may be made for the general operation of the machine. The machine is provided with the work support 11 and a presser foot 12. The frame 10 has a cylindrical hole 13 bored into it from its front end in which is mounted the cylindrical extension 14 of an edge gage 15, said extension having an arm 16 projecting laterally therefrom, the

frontface of the outer end of which is positioned adjacent to the opening 17 in the work support 11. i The rear end of the cylindrical extension 14 is flattened and forked Specification of Letters Patent.

Application filed April 24, 1915.

Patented Mar. 28, 1916.

Serial No. 24,134.

as shown at 18, said forked end straddling the shank 19 of a positioning screw 20. The head of the positioning screw 20 hearing against the flattened forked end of the member 14 prevents said member from turning about its axis while permitting end movement thereof in the chamber 13 in which it is mounted. The under part of the extension 14 is provided with a notch 21 in which is positioned a tooth 22 formed upon the upper end ofa lever 23 pivoted at 24 to the frame of the machine. The lever 23 is on the outer face of the frame 10 and is provided at its upper end with the projection 25 extending through an opening 26in the frame, said projection carrying the tooth 22 engaging the notch 21 in the extension 14. The lower end of the lever 23 is forked as shown in dotted lines at 27 in Fig. 2 of the drawings, and is provided at its forked end with an operating handle 28.

Mounted in the flange 29 of the frame 10 is a threaded stud 30 having flattened sides 31. This stud 30 ispositioned in the forked end 27 of the lever 23 which forked end is adapted to move longitudinally of the stud 30 to adjust the position of the edge gage 16 relatively to the work support 11. Threaded to the stud 30 are the limiting stops 32 positioned on opposite sides of the forked end 27 of the lever 23, these limiting stops 32 being adjustable longitudinally of the stud 30 and adapted to, limit the movement of the lever 23 in either direction. Each limiting stop 32 consists of two contacting nuts, the adjacent faces of each pair being provided with depressions therein in which is positioned a spring 33 tending to separate said nuts and thereby causing the threads thereof to impinge upon the threads of the stud 30 and lock the said stop members 32 in adjusted position. The handle 28 of the lever 23 is provided with a clamping member 34 pressed into frictional con.- tact with one of the flattened side faces 31 of the stud 30 by means of a spring 35 inclosed within said handle.

In the operation of the machine the operator adjusts the stop members 32 longitudinally of the stud 30 in position to limit the extreme forward and rearward movement of the edge gage 16 so that under no circumstance'will it be possible to move the edge gage beyond certain points. Between these points the operator may adjust the edge gage as desired by moving the handle 28 in either direction endwise of said stud 30. It is self-evident that the spring 35 must have suiiicient tension to force the clamping member 8% into such frictional contact with the face 31 that the edge gage 16 will be retained in its adjusted position under all ordinary conditions.

It is believed that the operation and many advantages of this invention will be fully understood from the foregoing description.

Having thus described our invention, we claim:

1. In a device of the class described, the combination of a work support, a member slidably mounted in the frame of a sewing machine and provided with a work engaging arm closely adjacent the upper face of said work support; a pivoted lever having an engagement with said slidable member at one end and bifurcated at its opposite end; a flat sided immovable member mounted on said frame and extending through said forked end; and means carried by said lever for clamping it to said immovable member.

2. In a device of the class described, the combination of a member slidably mounted in the frame of a sewing machine and provided with a work engaging arm and a transverse notch; a pivoted lever provided at its upper end with a tooth in engagement with the notch in said slidable member and bifurcated at its opposite end; a flat sided immovable member in said forked end; means carried by said lever for clamping it to said immovable member; and stop members mounted on said immovable member on opposite sides of said lever to limit its movement in opposite directions.

8. In a device of the class described, the combination of a member slidably mounted in the frame of a sewing machine and provided with a work engaging arm; a pivoted lever having an engagement with said slidable member at one end and bifurcated at its opposite end; a flat sided immovable member in said forked end; means carried by said lever for clamping it to said immovable member; and stop members adjustably mounted on said immovable member on opposite sides of said lever to limit its movement in opposite directions.

l. In a device of the class described, the combination of a member slidably mounted in the frame of a sewing machine and provided with a work engaging arm, said member having a transverse notch therein; means for preventing rotation of said member about its axis; a pivoted lever provided with a tooth at its upper end engaging said notch; a fixed member having a Hat surface and yielding means carried by the opposite end of said lever coacting with said flat surface for locking said lever in adjusted position. I

5. In a device of the class described, the combination of a member slidably mounted in the frame of a sewing machine and provided with a work engaging arm, said member having a transverse notch therein; means for preventing rotation of said member about its axis; a pivoted lever provided with a tooth at its upper end engaging said notch; a fixed member having a flat surface and yielding frictional means carried by the opposite end of said lever coacting with said flat surface for locking said lever in adjusted position.

6. In a device of the class described, the combination of a member slidably mounted in the frame of a sewing machine and provided with a work engaging arm; said member having a transverse notch therein; means for preventing rotation of said member about its axis; a pivoted lever provided with a tooth at its upper end engaging said notch and having its opposite end forked; an immovable flat sided member secured to the frame and positioned in said forked end; and means carried by said lever for clamping said lever to said member.

7. In a device of the class described, the combination of a member slidably mounted in the frame of a sewing machine and provided with a work engaging arm, said member having a transverse notch therein; means for preventing rotation of said memher about its axis; a pivoted lever provided with a tooth at its upper end engaging said notch and having its opposite end forked; an immovable flat sided member secured to the frame and positioned in said forked end; and a spring pressed plunger carried by said lever and engaging said member to lock it in adjusted position.

8. In a device of the class described, the combination of a member slidably mounted in the frame of a sewing machine and provided with a Work engaging arm, said member having a transverse notch therein; means for preventing rotation of said member about its axis; a pivoted lever provided with a tooth at its upper end engaging said notch and having its opposite end forked; a threaded member secured to the frame and having flat sides at its outer end which end is positioned in the forked end of said lever; a spring pressed plunger engaging a flat side of said member; and stop members threaded to said member on opposite sides of said lever to limit the movement of said lever about its pivot in either direction.

9. In a device of the class described, the combination of a member slidably mounted in the frame of a sewing machine and pro vided with a work engaging arm, said member having a transverse notch therein; means for preventing rotation of said member about its aXis;'a pivoted lever provided With a tooth at its upper end engaging said notch and having its opposite end forked; a threaded member secured to the frame and having fiat sides at its outer end Which end is positioned in the forked end of said lever; a spring pressed plunger engaging a 10 flat side of said member; and stop members threaded to said member on opposite sides of said lever to limit the movement of said lever about its pivot in either direction, said stop members consisting of two abutting nuts having alined sockets containing a spring extending from one nut to the other. Signed by us at 4: P. 0. Sq., Boston, Mass, this 22nd day of April, 1915.

LAWRENCE E. JOHNSON. EDWARD ERICKSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latents, Washington, D. C. 

